package com.kuang.Diy;

import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.Signature;
import org.aspectj.lang.annotation.After;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;

/**
 * 方式三：使用注解方式实现AOP
 */
@Aspect //标注这个类是一个切面
public class AnnotionPointCut {

    @Before("execution(* com.kuang.service.UserServiceImpl.*(..))")
    public void before(){
        System.out.println("===========方法执行前=============");
    }

    @After("execution(* com.kuang.service.UserServiceImpl.*(..))")
    public void after(){
        System.out.println("===========方法执行后=============");
    }

    //在环绕增强种，我们可以给定一个参数，代表我们要获取处理切入的点
    @Around("execution(* com.kuang.service.UserServiceImpl.*(..))")
    public void around(ProceedingJoinPoint joinPoint){
        System.out.println("环绕前");
        //执行方法
        try {
            Object proceed = joinPoint.proceed();
            Signature signature = joinPoint.getSignature();
            System.out.println("signature:"+signature);
        } catch (Throwable throwable) {
            throwable.printStackTrace();
        }

        System.out.println("环绕后");
    }
}
